ATmega-328pb does not boot load with arduino isp

[shanmugamIoT]

I have a custom board using with atmega-328bp micro controller and i try to bootload using with arduino-isp along with your package but could not bootloads at a lot of attempts .i am so frustating about that so expers please give me a suggestions

[MCUdude]

I suggest you paste the entire error message Avrdude gives you.

[shanmugamIoT]

home/siva/.arduino15/packages/MiniCore/tools/avrdude/8.0-arduino.1/bin/avrdude -C/home/siva/.arduino15/packages/MiniCore/tools/avrdude/8.0-arduino.1/etc/avrdude.conf -v -patmega328pb -cstk500v1 -P/dev/ttyACM0 -b19200 -e -Ulock:w:0xff:m -Uefuse:w:0b11110110:m -Uhfuse:w:0xd7:m -Ulfuse:w:0b11111111:m
Avrdude version 8.0-arduino.1
Copyright see https://github.com/avrdudes/avrdude/blob/main/AUTHORS

System wide configuration file is /home/siva/.arduino15/packages/MiniCore/tools/avrdude/8.0-arduino.1/etc/avrdude.conf
User configuration file /home/siva/.avrduderc does not exist

Using port : /dev/ttyACM0
Using programmer : stk500v1
Setting baud rate : 19200
AVR part : ATmega328PB
Programming modes : SPM, ISP, HVPP, debugWIRE
Programmer type : STK500
Description : Atmel STK500 v1
HW Version : 2
FW Version : 1.18
Topcard : Unknown
Vtarget : 0.0 V
Varef : 0.0 V
Oscillator : Off
SCK period : 0.0 us
XTAL frequency : 7.372800 MHz

AVR device initialized and ready to accept instructions
Device signature = 00 00 00 (retrying)
Device signature = 00 00 00 (retrying)
Device signature = 00 00 00
Error: invalid device signature
Error: expected signature for ATmega328PB is 1E 95 16

• double check connections and try again, or use -F to carry on regardless

Avrdude done. Thank you.
Error while burning bootloader.

[MCUdude]

AVR device initialized and ready to accept instructions
Device signature = 00 00 00 (retrying)
Device signature = 00 00 00 (retrying)
Device signature = 00 00 00

The Arduino as ISP programmer can't communicate with the ATmega328PB target. Do you have a schematic you can share? It may be because no external clock/crystal is connected to the 328PB, or it's not oscillating. I always recommend getting a proper ISP programmer such as the USBasp, because there are so many hardware-related issues when users use the Arduino as ISP.